Solution-Processed Bio-OLEDs with a Vitamin-Derived Riboflavin Tetrabutyrate Emission Layer

• Verfasst von: Jürgensen, Nils [VerfasserIn]
• Verfasst von: Ackermann, Maximilian [VerfasserIn]
• Verfasst von: Marszalek, Tomasz [VerfasserIn]
• Verfasst von: Bunz, Uwe H. F. [VerfasserIn]
• Verfasst von: Hinkel, Felix Peter [VerfasserIn]
• Titel: Solution-Processed Bio-OLEDs with a Vitamin-Derived Riboflavin Tetrabutyrate Emission Layer
• Verf.angabe: Nils Jürgensen, Maximilian Ackermann, Tomasz Marszalek, Johannes Zimmermann, Anthony J. Morfa, Wojciech Pisula, Uwe H. F. Bunz, Felix Hinkel, and Gerardo Hernandez-Sosa
• E-Jahr: 2017
• Jahr: April 19, 2017
• Umfang: 5 S.
• Fussnoten: Gesehen am 13.08.2018
• Titel Quelle: Enthalten in: American Chemical SocietyACS sustainable chemistry & engineering
• Ort Quelle: Washington, DC : ACS Publ., 2013
• Jahr Quelle: 2017
• Band/Heft Quelle: 5(2017), 6, Seite 5368-5372
• ISSN Quelle: 2168-0485
• DOI: doi:10.1021/acssuschemeng.7b00675
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1578532698

Abstract

Solution processed biomaterials are required for the active component to develop printed biodegradable and biocompatible optoelectronic devices. Ideal film formation is crucial for the fabrication of multilayer thin film sandwich devices. We report on the characterization of thin films of the riboflavin-derived biomaterial riboflavin tetrabutyrate and its utilization in an organic light-emitting diode. We show that the nonsolution processable precursor can form homogeneous and smooth films with the addition of tailored side groups that change its solubility. We demonstrate by grazing incidence wide-angle X-ray scattering that this chemical derivative reduces the crystallinity and enhances emission, likely by suppressing π-π stacking interactions. Organic light-emitting diodes with a poly(9-vinylcarbazole)-emissive riboflavin tetrabutyrate bilayer structure yield a maximum luminance of 10 cd/m2 and external quantum efficiency of 0.02% with a 640 nm peak orange exciplex emission. External quantum efficiency measurements of a photodiode affirm the exciplex formation.